2002123103023 has 4 divisors (see below), whose sum is σ = 2002342908280. Its totient is φ = 2001903297768.

The previous prime is 2002123103003. The next prime is 2002123103033. The reversal of 2002123103023 is 3203013212002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002123103023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002123103003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109888965 + ... + 109907182.

It is an arithmetic number, because the mean of its divisors is an integer number (500585727070).

Almost surely, 2^{2002123103023} is an apocalyptic number.

2002123103023 is a deficient number, since it is larger than the sum of its proper divisors (219805257).

2002123103023 is an equidigital number, since it uses as much as digits as its factorization.

2002123103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219805256.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2002123103023 its reverse (3203013212002), we get a palindrome (5205136315025).

The spelling of 2002123103023 in words is "two trillion, two billion, one hundred twenty-three million, one hundred three thousand, twenty-three".